The Proximus Theater (formerly Plopsa theater) is a theater in the amusement park Plopsaland in De Panne and one of the most famous theatres in Belgium. The theatre is not only used for the park shows of the amusement park itself, but also for external shows and performances, such as the Miss Belgium pageant.  The construction of the theatre began in December 2012, took about 5 months to complete, and opened on 14 July 2013.

The 1406 Plaza theatre seats are fully custom-made Plaza seats according to the highest acoustic requirements and of course equipped with a beautifully embroidered Plopsa logo.